Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2136/vzj2018.10.0189 |
| Estimating Deep Drainage Using Deep Soil Moisture Data under Young Irrigated Cropland in a Desert-Oasis Ecotone, Northwest China | |
Zhang, Yongyong1; Zhao, Wenzhi1 ; Ochsner, Tyson E.1; Wyatt, Briana M.2; Liu, Hu2; Yang, Qiyue1
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| 通讯作者 | Zhang, Yongyong |
| 来源期刊 | VADOSE ZONE JOURNAL
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| EISSN | 1539-1663 |
| 出版年 | 2019 |
| 卷号 | 18期号:1 |
| 英文摘要 | Deep drainage reduces agricultural water productivity under cropland recently converted from native desert soils (i.e., young cropland) and increases the risks of nutrient and pesticide leaching into groundwater in the desert-oasis ecotone. However, the deep drainage rates under young cropland in these oasis environments remain unclear, especially for winter irrigation, a common practice in Northwest China. The objective of this study was to estimate the deep drainage rate using the HYDRUS-1D model based on soil moisture data in the deep vadose zone. Soil moisture at depths ranging from 0 to 200 cm was measured using HydraProbe II soil sensors in maize (Zea mays L.) and wheat (Triticum aestivum L.) fields in 2015 and 2017, respectively. Using a novel simulation approach based on soil moisture data in the deep vadose zone, the HYDRUS-1D model provided reliable estimates of deep drainage as confirmed by comparison with estimates from the soil water balance method and prior studies in the region. The annual deep drainage averaged 468 mm, and the annual deep drainage coefficient averaged 43% in the young croplands. The winter irrigation amount averaged 265 mm, and the deep drainage coefficient during winter averaged 21% in the young croplands. The sandy soil of the young cropland and inefficient irrigation scheduling are detrimental to water conservation, causing relatively large deep drainage losses and enhancing the risks of groundwater pollution. |
| 类型 | Article |
| 语种 | 英语 |
| 国家 | Peoples R China ; USA |
| 开放获取类型 | gold |
| 收录类别 | SCI-E |
| WOS记录号 | WOS:000461317700001 |
| WOS关键词 | HYDRAULIC CONDUCTIVITY ; ENVIRONMENTAL TRACERS ; GROUNDWATER RECHARGE ; SOLUTE TRANSPORT ; DRIP IRRIGATION ; WATER-MOVEMENT ; MODEL ; REGION ; MAIZE ; FIELD |
| WOS类目 | Environmental Sciences ; Soil Science ; Water Resources |
| WOS研究方向 | Environmental Sciences & Ecology ; Agriculture ; Water Resources |
| 资源类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/219150 |
| 作者单位 | 1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Linze Inland River Basin Res Stn, Lanzhou 730000, Gansu, Peoples R China; 2.Oklahoma State Univ, Dept Plant & Soil Sci, Stillwater, OK 74078 USA |
| 推荐引用方式 GB/T 7714 | Zhang, Yongyong,Zhao, Wenzhi,Ochsner, Tyson E.,et al. Estimating Deep Drainage Using Deep Soil Moisture Data under Young Irrigated Cropland in a Desert-Oasis Ecotone, Northwest China[J],2019,18(1). |
| APA | Zhang, Yongyong,Zhao, Wenzhi,Ochsner, Tyson E.,Wyatt, Briana M.,Liu, Hu,&Yang, Qiyue.(2019).Estimating Deep Drainage Using Deep Soil Moisture Data under Young Irrigated Cropland in a Desert-Oasis Ecotone, Northwest China.VADOSE ZONE JOURNAL,18(1). |
| MLA | Zhang, Yongyong,et al."Estimating Deep Drainage Using Deep Soil Moisture Data under Young Irrigated Cropland in a Desert-Oasis Ecotone, Northwest China".VADOSE ZONE JOURNAL 18.1(2019). |
| 条目包含的文件 | 条目无相关文件。 | |||||
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